Silex

Least-privilege permissions

• Limit who can create or edit sites – Only grant access to trusted team members who need it; avoid giving everyone admin rights to Silex projects
• Restrict API connections – When linking Silex to databases or external services, use separate login credentials with minimal access (e.g., "read-only" accounts) rather than full admin keys
• Control template access – If sharing templates across teams, ensure people can't modify templates in ways that expose sensitive information or inject malicious code
• Audit credential storage – Verify that API keys and passwords are never saved in plain text within Silex project files or configurations

Network isolation

• Run Silex in a restricted environment – If possible, use it on a private internal network rather than exposing it directly to the internet
• Separate data sources – Keep databases and APIs that Silex connects to on different network segments; don't let Silex directly access your core internal systems
• Use a firewall – Block unnecessary outbound connections from Silex; only allow traffic to approved APIs or data services
• Encrypt all connections – Ensure Silex only communicates with external services over HTTPS (encrypted, secure connections)

Monitoring

• Log all site creation and edits – Track who created or modified each Silex site, when, and what data sources were added
• Watch for unusual data access – Monitor if Silex is pulling unexpected volumes of data from your APIs or databases
• Review external API calls – Regularly check which external services Silex is contacting and what information flows in and out
• Check for credential leaks – Periodically search your Silex project files and published sites for accidentally exposed API keys or passwords

Red flags to watch for

• Unpatched tool warnings – Silex has very low usage; if security vulnerabilities are discovered, patches may be slow to release or hard to find
• User content appearing in strange places – If text or data entered into the visual builder appears unexpectedly in site code or logs, it may indicate injection attacks
• Missing or vague documentation – If Silex doesn't clearly explain how it handles credentials or data, treat it as high-risk until verified
• Unexpected data downloads or API queries – If Silex is connecting to systems or pulling data without your explicit instruction, stop using it immediately and investigate